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Yealink SIP-T52S Administrator's Guide

Yealink SIP-T52S
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Configuring Security Features
925
4. Click Confirm to accept the change.
Note
To change the administrator password via phone user interface:
1. Press Menu->Advanced (default password: admin) ->Change Password.
2. Enter the current administrator password in the Old PWD field.
3. Enter new password in the New PWD field and Confirm PWD field.
Valid characters are ASCII characters 32-126(0x20-0x7E).
4. Press the Save soft key to accept the change.
Auto Logout Time
Auto logout time defines a specific period of time during which the IP phones will automatically
log out if you have not performed any actions via web user interface. Once logging out, you
must re-enter username and password for web access authentication.
Procedure
Auto logout time can be configured using the following methods.
Central Provisioning
(Configuration File)
<y0000000000xx>.cfg
Configure auto logout time.
Parameter:
features.relog_offtime
Web User Interface
Configure auto logout time.
Navigate to:
http://<phoneIPAddress>/servlet?
p=features-general&q=load
Details of the Configuration Parameter:
Parameter
Permitted Values
Default
features.relog_offtime
Integer from 1 to 1000
5
Description:
Configures the timeout interval (in minutes) for web access authentication.
Example:
features.relog_offtime = 5
If you log into the web user interface and leave it for 5 minutes, it will automatically log out.
If logging into the web user interface of the phone with the user credential, you need to enter
the old user password in the Old Password field.

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Yealink SIP-T52S Specifications

General IconGeneral
Touchscreen-
Display diagonal2.8 \
Backlight displayYes
Display resolution320 x 240 pixels
Lines quantity16 lines
Phonebook capacity1000 entries
Number of VoIP accounts12
AC adapter input voltage100 - 240 V
Bluetooth version2.1+EDR
Security algorithms802.1x RADIUS, HTTPS, MD5
Ethernet LAN interface typeGigabit Ethernet
USB 2.0 ports quantity1
Ethernet LAN (RJ-45) ports2
MountingDesk/Wall
Handset typeWired handset
Product typeIP Phone
Product colorBlack
Voice codecsG.722, G.723, G.723.1, G.726, OPUS, iLBC
Volume controlDigital
Operating temperature (T-T)-10 - 40 °C
Operating relative humidity (H-H)10 - 95 %
Cables includedLAN (RJ-45)
Number of handles included1 pc(s)
Front cameraNo
Operating system installedLinux
Weight and Dimensions IconWeight and Dimensions
Depth212 mm
Width211.6 mm
Height166.8 mm

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